Photos dropped Monday of the supermodel, 20, leaving a London photo studio and visiting Malik at his home in a northern suburb of the U.K. capital city.
The latest photos come just a day after making the rumored couple made their ambiguous relationship Instagram official, with Malik, 22, posting a cuddly, uncaptioned selfie of the pair on the social media app.
While romance buzz began swirling between the model and the former One Direction singer shortly after Hadid called it quits with ex Joe Jonas in November, neither has confirmed the status of their relationship yet.
“They are just friends and are casually hanging out,” a source told E! last month. “She is not looking to jump into another relationship so soon. Gigi is a relationship-type kinda girl, but she wants to just have some fun and take time for herself and her career at the moment.”